Very lucid and interesting post. However, if you look at other communities like Slashdot, a level of civility is enforced by the community, without necessarily

Very lucid and interesting post. However, if you look at other communities like Slashdot, a level of civility is enforced by the community, without necessarily stifling unpopular or dissenting viewpoints (at least once upon a time). It becomes a matter of filtering out inflammatory posts ("trolls"), and that will ultimately depend on the tastes and preferences of the community at large.